Object of experiment: Tubes PXB in an amount of 3 pieces
Purpose of experiment: Testing depressurization follow instruction PI-206 and SZ-22-1828
Conclusion: Tubes PXB in an amount of 3 pieces tightness is matching, follow instruction PI-206
The protocol signed by the chief of laboratory Miloserdov, laboratory scientists Zavzin and Sokolov
Dated November 3, 1969
Size 11" x 8.1/2"
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